Panel



FIG. 1 is a front elevational view of a panel;

FIG. 2 is a rear elevation view of a panel;

FIG. 3 is a left side elevational view of a panel, the right side elevational view being identical thereto;

FIG. 4 is a top plan view of a panel;

FIG. 5 is a bottom plan view of a panel;

FIG. 6 is a perspective view of two panels being connected; and,

FIG. 7 is a front perspective view of a panel. 

The ornamental design for a panel, as shown and described. 